Means and method for making glassware



May 2, 1939: 4 L. woHlNC 2,

MEANS AND METHOD OF MAKING GLASSWARE"? Fi led March 17, 1937 2Sheets-Sheet 1 Patented,May 2,"l939 a a I e u a t UNITED, STATES PATENTOFFICE .q a I a, .ra ag f v it u MEANS AND METHOD FOR'MAKING GLASS-'- pI "Louie-Wo hinc; Weston, v3. Application March 17, 1937, Serial No.131,612 3 Claims. (or. 49-18) My invention relates generally to moulds,and r and showing the sections of the head of theblowparticularly to amould adapted to the forming head in open positions-in dotted lines.

of glassware and thevlike by mechanical opera- Figure 2 is a top planview-of the device shown ,tions, and more specifically to apparatus ofthis in Figure 1. s p 7 class employed in forming thin-walled stem wareFigure; 3 is a vertical sectional view taken 5 by combined blowing andmoulding; and my inthrough Figure 1 approximately on the'line 3-3vention further relates toja method of forming and looking toward theleft in the direction of such glassware employing such apparatus; andthe arrows.

an important object of my invention is to provide Figure 4 is a sideelevational view of the blowmeans of the character indicated wherebythe" head. e V v 10 expenses and difiiculties of manufacture are reaFigure 5 is a vertical sectional view taken duced and wherein a greatervariety'of shapes v through a blow-head having anterior, surfaces andsizes of glassware may be formed on the same different from theinteriorsurfaces of the blowapparatus. a 1 head shown-in Figures 1 and 3.: v vStemmed glassware having round-bowls re gu- V v Figure 6 is a horizontalsectional view taken 15 lar in shape have been manufactured in onethrough the lower partof Figure 1 and looking piece; However, when it isdesiredto produce a downwardly in the direction of the arrows andstemmed glass having a bowl of octagonal or showingthe'sections of thestern mould in open other irregular shape or provided with design Posi V7 j I thereon the bowl and stem are'separately mould t ,Figure 7 is afront elevational view of one sec- 20 ed and subsequently securedtogethenf This has tion, of the stem mould showing a modified con- Ibeen necessary inasmuch asthe manufacturing or struction thereof. g l Vmoulding of stemmed glassware having bowls of Figure 8 is an elevational'view showing the regular shape permits of the contacting of the stemmould sections in closed-positions, and 5 molten glass withthe sidesofthe bowl mould Figure 9,isla perspective view .of: a portion of 5during the formation of the stem without afiect the blowpi'pe and aquantityof glass thereon from ing or causing an injury to the 'bowlportion of which the stem is formed illustrating thee-manthe glass.Heretofore it hasbeen, impossible to ner in which the free end is drawnfor formingmould a bowl of irregular shape and a stem in the stemthereof. 7

one piece because the irregular surface of the The means for makingglassware of the thin- 30 bowl mould would not permit of the rotation ofwall stem equipped type having an irregular shape the glass during theformation of the stem, the bowl or design therein contemplates theprocontacting of the glass with the irregular surface vision of a S pp011 which there is Pivotally of the bowl mould causing a defect in thecomed a tio s m forming mould. Withpleted bowl. in the support, there isfreelyrotatable the bowl 35 It is, therefore, one of the objects of thepresor d mould f f n h wl of re u a n ent invention to provide a mouldwhich will perh n Sold bowl mould e n i communication, mlt of themoulding of the stemmed glass having with the stem h h 0138mm? in theusual a bowl of irregular shape or with designs thereon manner a asumclent fl n of molten in one piece 7 glass on' the free end of h sblowpipe and by 40 Astill further important-object of the inventionmeans an instrument such as Pmchers the like draws the free end of theglass intoan W111 be found to reside not only in this novel i n v rstructure for producing thisresult, but in a simelongated formapproximating the length and plifiedstructure which will permit by asimple aggg fiff g gfifigag gg g g g ifigfi t operanon the formation ofdlflerent. types or m0u1d, the elongated formation. being insertedshapes bowlswithin the stem mould and upon a subsequent Other importantobJects of my inventionwill rotation. f e blowing pjpe the glg ss mes beapparent from a reading of the following dethe shape f the stem mouldthereby f r ing scripti n tak in connection w th the d aw n the stem.The bowl mould being freely and easily 50' wher f r p rp f il n I havewn rotatable rotates through the contacting of the a preferredembodiment of my invention. glass therewith during the formation of thestem In the drawings: r [and upona subsequent blowingthe bowl is Figure1 is a-general vertical sectional view formed of irregular shapewithoutdefects. takenthrough an bodiment of the inve'ntion Referring indetail to the drawings, the nu- '5 meral 5 generally designates asuitable base such as the table of the machine of which several typesare available in the prior art, and from which the body mould. which isgenerally designated I5 and which is cylindrical in form and hasareduced cylindrical portion I6 of which the lower end depends below thebearing structure I! and rides closely in the opening II in the supportplate I0, and close -to .the top of the stem mould which is generallydesignated I'I and which rests on the base 5 below the plate I0.

-The stem mould I! is formed of semi-cylindrical half-sections I8 and I9as indicated in Figures 6 and 7, each section having an ear 20, 2I,respectively, turning on a common pivot 22 which is fastened to the base5 as indicated by the numeral 23 in Figure3. Lugs 24, 25,'respectively,have respective operating elements 26, 21 pivotally connected thereto,the same operating elements 25 and 21 extending to the automatic machinewhich operates the device. A guide and stop peg 28 is placed to risefrom the base 5 in such a posi-" tion that it will stop the stem mouldsections in a rior surfaces of the bore 3| are of the external shapedesired for the bowl portion of the glassware, and any suitable anddesired variations, one

- of which is shown in Figure 5, in the contour and I shape of the bore3I may be arranged to produce remove or place another bowl mould in theshell the set screws are screwed outwardly:

Above the shell I2 the body mould has a laterally extending flange 34 ondiametrically opposite points which are hinged as indicated by .the

respective -numerals 35 and 36, the sections 38 and 39 forming the headwhich is generally designated 31, the hinging being arranged so thatthese sections may be swung to the dotted line positions shown in Figure1 for removing the completed glassware or for other operations requiringaccess to the interior of the body mould. Operating elements 40 and llextending from the actuating machine engage elongated lugs 42, 43,respectively, which are formed on the sections. 4 The sections define aninverted funnel-shaped passage 44 through which the glass on the blowpipe is inserted.

From what has been said above it is obvious that it is an easy andsimple operation to adjust or change the position of the body mould, andequally easy to entirely change the body mould when it is desired toform glassware of a different shape or contour or design and having thesame stem conformation. Although the stem mould I! cannot beinterchanged with as great facility as the body mould, this also issubject to change to suit different bowl forms.

As illustrated in Figures 6 "and 7 if so desired, the stem mouldsections I3 and I9 may be of semicircular shape and have insertedtherein a die 60.

constructed of carbon or other suitable material. This die 60 issecurely fastened in the mould ring I! by means of the screws 62.

In moulding thin glassware the operator as clearly illustrated in Figure9 in the well lmown manner obtains a sufficient quantity of the moltenglass on the free end of the blow pipe B and subsequently by means of apair of tongs or the like forms an elongated portion on the free endthereof. In practice the length, and cross sectional area of theelongated portion F depends of course, upon the size stem desired whichis controlled by the stem mould I'I. Theheads are then opened to theposition illustrated in dotted lines in Figure 1, the molten materialbeing inserted within the body mould and the elongated portion F intothe stem mould. The stem is then formed by 'rotating the blow pipe 13,that portion of the molten glass which will subsequently form the bowlof the glassware contacting the inner side of the rotatable bowl andeffecting rotation of the mould thereof.. It is to be observed that therotation of the blow pipe being incident to the formation of the stemand the contacting of the material subsequently forming the bowl of themould with the bowl or body mould will not cause a defect in thecompleted body portion of the bowl because of the rotation of the bodymould therewith. In other words, the glass which is subsequently to beblown for forming the bowl of the glassware instead of rubbing againstthe inner side of the mould as would be the case if the same werestationary and causing a subsequent defect; due

to the rotatable mounting of the mould effects a simultaneous rotationof the mould with the molten glass thereby eliminating the slidingcontacting of the glass therewith and any defects which might be causedby this sliding contacting. After the stem has been formed in thismanner, the bowl of the glassware is blown in the usual manner, and uponthe opening of the blow-heads, and the stem mould. section the completedglass may be entirely removed from the mould.

It will thus be seen-that the rotatable mounting of the bowl or bodymould permits of the formation of the stem portion of the glasswarethrough the medium of rolling the blow pipe and effects a simultaneousrotation of the bowl mould with the glass permitting of the moulding ofa bowl of irregular shape integral with the stem portion of theglassware free from any defects.

Obviously, the bowl may be of any configuration or shape, have any typeof design thereon or be provided with surface inequality, thesimultaneous rotation of the bowlmoulds with the .molten glass duringthe formation of the stem eliminating the usual defects caused by therubbing or contacting of theglass withthe interior of the body or bowlmould.

While there is shown for the purpose of illustration the preferredembodiment of the invention,'it is to be understood that it is capableof various changes without departing from the spirit thereof, and-it isintended therefore, that only such limitations shall be imposed thereon,as are indicated in the prior art or in the appended claims.

What is claimed is:

1. A method of making in one piece stemmed glassware having a. bodyportion of irregular shape. said method comprising selecting a. mouldhavingthe desired shape for the bowl 1301111011 and rotatably mountingthe same, providing sectional moulds for the stem communicating with thebowl mould. obtaininr: a suffiricnt quantity of molten glass on a blowpipe and forming an elongation on the free end thereof. inserting theglass within the moulds. the elongated portion thereof being receivedlIl the stem mould and the other portion in the bowl mould. freely.rotating the blow pipe and forming the stem and simultaneously freelyrotating the bowl mould by the contacting of the glass therewith. andsubsequently blowing the bowl portion of the glass in the bowl mould.

2. A combined stem moulding and body blowing device for makingglassware. said device comprising a support. a sectional stem mould onsaid support, a cylindrical shaped shell mounted on said support incommunication with the bore of said stem mould. a body mould freelyrotatable in said shell and being in communication with said stem mould.ball bearing means interposed between the shell. and the body mould.said body mould being provided with a channel in its periphery thereof.set screws in said shell receivable in said channel for preventinglongitudinal movement of said body mould relative to said shell. andhingedly mounted sectional heads on other portion in the bowl mould,freely rotating the blow pipe and forming the stem and simultaneouslyfreely rotating the bowl mould by the contacting of the glass therewith.and subsequently blowing the bowl portion of the glass in the bowlmould.

LOUIE WOHINC.

